Orthodontic torquing system



Jan. 12, 1965 M. WALLSHEIN ORTHODONTIC TORQUING SYSTEM Filed April 25. 1961 INVENTOR,

MELVIN wALLSHEl N,

AT TO R NEY tine The present invention relates to improved fittings for use in orthodontia and .more particularly to bracket and cantilever systems carried on teeth in a mouth to support an arch wire. r

The principal object of this invention is to provide a novel and improvedorthodontic torquing system which will imposeforces in various directions on a tooth, to accomplish proper alignment thereof by acting thereon to upright same or cause a partial axial turn thereof.

Another object thereof is to provide a novel and improved orthodontic torquing system of the character men- .tioned, which is simple in construction, easy to work cured to said band along the plane determined by such.

channel. Each of the free ends of said cantilever blade springs has a hole therethroughto engage a tie wire for association with the arch wire. Preferably there are four such cantilevers, offered by two bows which are nearly fiat and secured to said band at their midsections, by welding or other suitable manner.

In the accompanying drawing forming part of this specification, similar characters of reference indicate corresponding parts in all the views.

FIG. 1 is a side view of a patients upper teeth in the mouth, provided with brackets taught by this-invention, such brackets supporting an arch wire about the teeth. Here, the cantilevers are not shown in use;

FIG. 2 is a perspective view of a bracket and cantilever structure of'the type shown in FIG. 1, drawn to an enlarged scale. 7 i

FIG. 3 is a fragmentary perspective view of said bracket structure. Here, tie wires are, associated with all the cantilevers and the arch wire, in a manner to cause the-tooth carrying the bracket structure, to move forward. This view is much enlarged.

' a FIG. 4 is a side view of the cantilever structure, showing tie wires associated thereon in an arrangement to cause the tooth to move rearward. This is anenlarged view. a

FIG. 5" is also a side'view of the cantilever structure, showing tie wires associated thereon in an arrangement to give the tootha downward movement. This is also an enlarged-view. 1 a

' FIG. 6 shows the torquing system on a'tooth which is slanted in a given direction Tie wires are arrangedto offer the necessary forces to upright the tooth.

, FIG."7 shows a torquing system on a tooth slanted in turn in clockwise direction. The tie wires are arranged to etfect this.

FIG. 10 shows the cantilever structure ona tooth Whose crown region needs to be swung forwardly and upwardly to upright it. The tie wires are arranged to accomplish this.

FIG. 11 shows the cantilever structure on a tooth whose crown region need be swung rearwardly upwardly to upright it. The tie wires are arranged to effect this. FIG. 12 is a fragmentary side view of a modified form of cantilever structure on a band which is to be tightly fitted on a tooth in the mouth. In each of the FIGS. 3, 4 and 5, the band deemed mounted on a tooth in a mouth.

FIGS. 6-11 shall be deemed to show teeth in a mouth. In the drawing, the preferred embodiment of this invention is designated generally by the numeral 15, which is a fitting comprising a band 16 to be tightly fitted on a tooth in a month, which band on its outer surface carries a channel element or bracket 17 arranged lengthwise and depthwise horizontal'to support the arch wire 18. This channel element may be provided with the flanges 19, 19' so when appropriate, a tie wire not shown, may be applied to hold the arch wire seated in said channel as is well known in this art. of the band 16 and secured thereto at the horizonal lane determined by said channel in the embodiment illustrated, I provide one or more resilientcantilevers. Here, four are shown. Those numberedf21', 22 extend up wardly and those marked 21 and 22" extendfldownwardly. I prefer that the cantilevers 21, 21" shall form a how 21 which is secured at its mid-region 21" to said band 16 and that the cantilevers 22', '22" shall form a bow 22 which is secured at its mid-region 22" to said band; said bows being in spaced relation. Intermediate said bows is the channel element 17. In this embodiment, each free end of each of the cantilevers is provided with a hole as 24 to engage a tie wire associated with the shall be arch wire 18 in such a manner that a force or forces shall be created to act to move the tooth carrying this fitting '15. Various manners ofapplying, tiewires and the results obtained thereby will now beset forth to explain some ofthe uses for this fitting 15. p

In normal condition, the members 21 and 22 are 'slightly In all installations, the arch wire is fixedand therefore the action of all forces supplied by the cantilevers 21, 21", '22,, 2.2", is'to cause tooth moVementbymQVe ment' of the fitting 15. "The tie wires are-taut and the cantilevers that they are associated with are bent into will now be set forth, wherein reference to theQlet ter B indicates-the tooths buccal face and I; denotes its lingual face.

When a tie wire is mounted wires 25 and 25' are in the arrangement shown in the FIGS. 3 and 10, the tooth 27 on which thefitting 15 is mounted, will be moved in the direction' F1, that is, the forces created by the stressed cantilevers will move the tooth 27, buccally. This is apparent, because in their attempt to straighten, the cantilevers must bring the fitting 15 towards -the arch wire 18, since such arch wire does not move. Hence the arrangement shown in FIGS. 3 and 10 is used when it is desired inclined as is27 in FIG. 10.

When a tie wire is mounted as the string of a bow on each of the members 21 and 22 respectively, as one Patented J an. 12 1965 Also, along the height.

' as the string of a ,bowi' on each of the members 21 and22 respectively as theitie to upright a tooth appears in FIG. 11 indicated by the numeral 25', the tooth 31 on which the fitting 15 is mounted, will be moved in the direction F2, that is the forces created by the stressed cantilevers will move said tooth 31, lingually. This is apparent, because in their attempt to straighten, the cantilevers must bring the fitting away from the stationary arch wire. Hence the arrangement shown in FIGS. Hand 4 is used when it is desired to upright a tooth which is tilted as is 31 in FIG. 11.

Still using the tie wires as the strings of the bows, the arrangement shown in FIG. 9, has one tie wire mounted as to create the force in the direction F1 at how 22 and to have the second tie wire mounted as 25 to create the force in the direction of F2 at the bow 21. The resulting action will be to turn the tooth axially .a part turn in a clockwise direction A. Hence this arrangement shown in FIG. 9 is used where it is required to turn a tooth 28 axially in a clockwise direction. A reverse arrangement of the tie wires as shown in FIG. 8, will create a force in the direction F1 at how 21 and a force in the direction of F2 at bow 22 .to cause the tooth 29 to turn axially a part turn in the counter-clockwise direction A.

In FIG. 5, the tie wire 33 is a sling from the cantilever 21 to the arch wire 18. Deeming the band 16 here, tightly mounted on a tooth, then as the cantilever 21' straightens, the tooth will be moved in a downwardly direction. This is apparent, since the arch wire 18 in this arrangement does not move. It is also evident that if thesling tie wire is associated with the cantilever 21",

the action will be to raise the tooth.

When a tooth is tilted as 36 in FIG. 6, it will be moved in the direction A" to be uprighted when the slings are associated with the cantilevers 21" and 22 respectively. Also, when a tilted tooth as is to be uprighted, the arrangement shown in FIG. 7 is used. Here the slings are associated with the cantilevers 21' and 22" respectively. This will cause the tooth 35 to be moved in the direction A. In FIG. 6, the force created at bow 21 is F3 and that at the bow 22 is F4. In FIG. 7, the force created at how 21 is F4 and that at bow 22 is F3. In the installation shown in FIGS. 6 and 7, the arch wire 18 is loose in the bracket 17 to aiford swingability for such bracket. I

In the modified embodiment shown in FIG. 12, the resilient how 37 is formed with an inward crimp 38 at mid-region through which an arch wire 18' can be laced. The points of attachment of the bow to the band 16 are indicated by the numerals 39, 39'. This construction is of convenience where an auxiliary arch wire is required in the orthodontic procedure.

It is mentioned herein that the arch wire 18 is sta tionary. For all intents and purposes it may be deemed to be so because it is practially stationary.

This invention is capable of numerous forms and various applications without departing from the essential features herein disclosed. It is therefore intended and desired that the embodiments shown herein and their manners, of use indicated, shall 'be deemed merelyillustrative and not restrictive and that the patent shall cover all patentable novelty herein set forth; reference being had to the following claims rather than to the specific description herein to indicate the scope of this invention.

I claim:

1. An orthodontic system comprising, an element to be mounted on a tooth, an arch wire bracket having a horizontal channel therein secured to said element, at least one vertically extending resilient cantilever arm secured at one point to said element horizontally adjacent said bracket, said arm being curved away from said element from its point of securement to an outer end, means at said outer end of said arm for engagement by a tie wire, said outer end being substantially to one side of the axis of said channel, an arch wire in said channel and a tie wire connecting said outer end and said arch wire whereby corrective force may be applied to a tooth on which the system may be applied.

2. An orthodontic system as defined in claim 1, wherein the number of cantilever arms is two; each of said arms being associated with a separate tie wire connecting its outer end and said arch wire; said bnacket being intermediate said cantilever arms.

3. An orthodontic system as defined in claim 2, wherein said cantilever arms extend in opposite directions respectively.

4. An orthodontic system as defined in claim 1, wherein said bracket has a formation to engage a tie wire for holding the arch wire against movement out of the channel.

5. An orthodontic system comprising, an element to be mounted on a tooth, an arch wire, and two horizontally spaced, vertically and parallel extending resilient cantilever arms secured at one point, respectively to said element, said arms being curved away from said element from their respective points of securement to at least one outer end, respectively, means on said outer ends for engaging tie wires, and two tie wires connecting said outer ends and said arch wire to apply corrective forces to a tooth on which the system may be applied.

6. An orthodontic system as defined in claim 5, wherein each cantilever arm has two outer ends which are away from the point of securement, in opposite directions respectively.

7. An orthodontic system as defined in claim 6, wherein each cantilever arm is of bow-form.

8. An orthodontic system as defined in claim 6, including an arch wire bracket having a horizontal channel therein secured to said elementysaid channel being intermediate the tie wires, and said arch wire being in said channel.

9. An orthodontic system as defined in claim 8, wherein said bracket has a formation to engage a tie wire for holding the arch wire against movement out of the channel.

10. An orthodontic system comprising, an element to be mounted on a tooth, an arch wire, two aligned, verti said outer ends and said arch wire to apply corrective forces to a tooth on which the system may be applied; said crimp being'for the support of an arch wire therethrough.

References Cited by the Examiner UNITED STATES PATENTS 2,548,864 .4/51 Brusse 32-14 2,665,480 1/54 Johnson 3214 2,908,974 10/59 Stifter 3214 3,062,028 9/62 Wallshein 32--l4 3,093,903 6/63 Kesling 32P14 FOREIGN PATENTS 217,651 5/58 Australia.

OTHER REFERENCES Rocky Mountain Catalog 1956, advertising page 40.

RICHARD A. GAUDET, Primary Examiner.

ROBERT E. MORGAN, Examiner. 

1. AN ORTHODONTIC SYSTEM COMPRISING AN ELEMENT TO BE MOUNTED ON A TOOTH, AN ARCH WIRE BRACKET HAVING A HORIZONTAL CHANNEL THEREIN SECURED TO SAID ELEMENT, AT LEAST ONE VERTICALLY EXTENDING RESILIENT CANTILEVER ARM SECURED AT ONE POINT TO SAID ELEMENT HORIZONATLLY ADJACENT SAID BRACKET, SAID ARM BEING CURVED AWAY FROM SAID ELEMENT FROM ITS POINT OF SECUREMENT TO AN OUTER END, MEANS AT SAID OUTER END OF SAID ARM FOR ENGAGEMENT BY A TIE WIRE, SAID OUTER END BEING SUBSTANTIALLY TO ONE SIDE OF THE AXIS OF SAID CHANNEL, AN ARCH WIRE IN SAID CHANNEL AND A TIE WIRE CONNECTING SAID OUTER END AND SAID ARCH WIRE WHEREBY CORRECTIVE FORCE MAY BE APPLIED TO A TOOTH ON WHICH THE SYSTEM MAY BE APPLIED. 